Common breeding bird and migrant, found from March to October in dense stands of trees near marshes. Rare in winter. Immatures are heavily streaked. Sexes are similar.
There are two Black-cowned Night Herons in this case. One is a juvenile, slightly below and to the left of the Snowy Egret (not seen here). An adult in breeding plumage (note the bright green feathers around the eye) is just below and to the right of the Snowy Egret and is shown above.
Information about the juvenile specimen:
Collected By: Dr Hessel
Locality: Washington, DC (Carp Ponds) (now Constitution Gardens Pond)
Sex: Female, Juvenile
Catalog ID: 84861
Information about the adult specimen:
Collected By: Gift from Mrs Vernon T Sherwood of Fairlington, VA
Sex: Adult; sex not recorded
Catalog ID: 400961